Pantaleón Julian Valdés was a Cuban medical doctor, an activist of civil and political rights for black and mulatos in Cuba and a prominent voice for the Afro-Cuban intellectual elite.

[2] After his tenure as president of Club Atenas, Pantaleón J. Valdés continued his political journey as a representative of the Camara for the Conservative Party in 1920.

Luis Delfin Valdes of Havana, Cuba[8] Pantaleón J. Valdés was one of the founding members of the Club Atenas and its first elected President from 1917 to 1918[9] in La Habana.

The Club Atenas was the most exclusive and aristocratic society for the black and mulatos and was the most influential civic and cultural organization of its kind in Cuba.

Órgano de la Sociedad "Club Atenas" from 1931, the board of directors was formed and Pantaleón Julian Valdés was elected as the first president.

Ramón M. Edreira[10] As the president, Pantaleón J. Valdés gave the opening speech during the inauguration alongside the member of honor Juan Gualberto Gómez an Afro-Cuban revolutionary leader who became senator in 1919.

The Club Atenas was the most well-known society of color on the island and a place where the black and mulato professional elite met to discuss progressing social thoughts.

The building was finished the 11 of May 1929 and was located in the streets Ignacio Agramonte and Apodaca, opening with a reception in which the President of the Republic and celebrating in the evening a great ball for members.

Pantaleón J. Valdés married twice, he met his first wife Ana Coscojuela in Spain and together they traveled to La Habana where she later died from tuberculosis.

Once Maria Teresa Valdés Coscojuela returned to Cuba, she studied Medicine and Surgery at Universidad of La Habana and graduated in July 1920.